Toyota Yaris: Sfi System / Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
HINT:
Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the GTS when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
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Clear the DTCs.
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Change the ECM from normal mode to check mode using the GTS.
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Perform a simulation test.
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Check and wiggle the harness(es), connector(s) and terminal(s).
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CAUTION / NOTICE / HINT HINT: *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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2. CUSTOMER PROBLEM ANALYSIS
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CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem...
Other information:
DATA LIST / ACTIVE TEST DATA LIST HINT: Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed...
ComponentsCOMPONENTS ILLUSTRATION
*1 VSC OFF SWITCH (COMBINATION SWITCH ASSEMBLY) - - InspectionINSPECTION PROCEDURE 1. INSPECT VSC OFF SWITCH (COMBINATION SWITCH ASSEMBLY) (a) Check the resistance. (1) Measure the resistance according to the value(s) in the table below...
Categories
Stop the vehicle completely.
Manual transaxle:
Shift into neutral and set the parking brake.
Automatic transaxle:
Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is
off.
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